If you would like to authorize someone to collect or Western Union transfer on your behalf, here is a sample template you can use to write an authorization letter for Western Union.
Due to some unavoidable circumstances, I will be unable to collect the agreed amount on [Date]. As a result, I have authorized [Authorized personnel’s name] to be present on my behalf. He/she is also to collect the correct sum. He/she has my full consent to take these actions on my behalf.
Please find his/her details here.
[Full name of authorized personnel]
[Any identification number of authorized personnel]
[Contact information of authorized personnel]
Please inform me as soon as he/she has collected the sum at [Your Contact Information]. If there are any queries, please reach me at the same. Thank you for your cooperation.